Harrow



July 1926. f 4

' D. sPAHN Filed sept. 1'7 v1925 HARRow` 2 Sheets-Sheet 1 July 20 1926.

1,593,145 D. SPAHN HARRw Filed Sept. 17 1925 2 Sheets-,Sheet 2 Patented July 2Q, 1925. Unire srai'ss rarest erstes,

navrnfsrsnn, or wnnarrsnn, WYOMING.

i-rannow.

application ered september i?, i925. serrer no. 551,963.

.'l'hisinvei'i'tion relates to an improved harposed in overlapping connected relation row structure together Y'ith novele draft with acorrespondingly shaped end of an adnieans for connect-ing the same toa cnltivacent bar. ltoreover each bar has the op-r tor or similarinachine. posite end bowedy or bent longitudinally as 60 5 @ne object is' to nerally improve upon at 4. rlie relative arrangen'ient of these the adjustable harrow structure disclosed bent ends 4 is obviousfrom a consideration Vin a prior patentbearingA No. 1,539,441, of Fig. 5.

granted tolme oirMay 26th, 1925. Two special connectors are associated with As in the patent referred to, it is one of the harrow frame for expanding and con- 65 the outstanding objects in this case to protracting the same and securing the desired vide an improved means for adjustingv the rigidity of structure. One c nnector is'insections of' the hai-row' frame both in Width dicate'd by the reference character and the and length, while; at' the saine time adding other one by the reference character 6. greater strengthtothe structure. The connector 5 is made up of a pair of 'I0 An equally important featnre'of the pres'- duplicate strips of metal represented by the' ent invention' is the novell attaching means characters 7. These strips are flat in= form,- provided for connecting the harrow to a cul'- being somewhat similar to the bars 2 used'in tivator, this' means embodying an advanthe makefup of the aforesaidV frame. The tagoous coupling for securing the structure outer ends of the strips are flat and are'con- 7b ina manner to obtain t'hemost advantageous nected with opposed cornersl vof the frame.

lineof draft. Theinner adjacent ends however, are twist- Other features and advantages of the inedas at' 8 and the extremities 9'are thus dis vention will become apparent from the folposed vertically and adjustably connected londng description' and drawings. together as at l0. S0

In the accompanying' drawings' forming a At this time,l l' would directA attention to part of this application and in which like Fig. 4, wherein it will be'seen thatv the' overnumerals` are' employedI tov designate like lapped adjust'ably connected ends 9 are proparts throughout thesarne :e vided with additional holes througlr which Figure ll is side-'view of a harrow conthe connecting bolt may be selectively S5 structe'd in' accordance with the present inpassed. T his permits the length of theconvention showing the novel suspension and nector to be varied for adjusting theharrow attachment meanstherefor. frame in width'.

Fier. 21'sa, to o jlan view of the suspension he connector 6 is 1n the forml of a'y snwle L l v e and attaching means;` metal rod. The rod is or cylindricall cross 90 F ig'. 3f is a top plan view of the" harrow section and' is provided at itsV front with a structurewith themeahs in Fig'. 2 removed; relatively large eyell and is provided at' .its

Fig. 4 is a central cross section through opposite end with a plurality of bolt holes the structure shown iiiFig. 3. l2kthrough which" the special eye bolt lo is Fig. 5 is a detail view of one corner of the' adapted to be passed. l In connection. with 95 40 harrow struoture this ro'd lo, l'. would call attention to the in- Fig. 6 is a perspective view of one of the termediate portion 14 which is bowed or frame bars of the harrow. arched to overlie the intermediate portion of Referring to the drawings in detail, the the connectors 5 in spaced relation. In conreference character l designates generally nection with this rod 6 I would call atten- 100 the frame of the harrow. This is made up tion to the especially bent ends 4 of the of a plurality of substantially duplicate flat aforesaid frame bars. These bent ends are bais 2, each of which is provided with opeirconnected with the rod as shown plainly in ings for passage of the threaded upper end Fig. 5. From this figure, it is apparent that of the teeth 8. These teeth arel clamped to one end of one frame bar is bent downwardthe bars by the nuts as shown more plainly ly and the other one upwardly and they in Fig. 4. thus substantially encircle the rod.

It is only necessary to state in connection From the foregoing it will be seen that with the teeth that it is preferable to have the harrow proper comprises a frame comless teeth at the front of the structure than posed of a plurality of sections pivotally .55 at the rear. This is plain by considering connected at their ends in a manner to perf Fig. 8. Each. bar has one end flat and dismit the frame to be adjusted in widthy and length. This 'adjustment is made by means of the adjustably connected intersecting connectors, one of which comprises a cylindrical rod and the other of which comprises adiustably connected fiat sections.

The suspension and hitchineor att-aching device comprises a cylindrical rod 15 embodying` a down bent portion 16 and a horizontally bent portion 17. At the major part of this member 15 are clevises 1S with which hangers 19 are connected, these hangers being provided at their opposite ends with attaching eyes. The eye on the lower end of the foremost member 19 is connected with the relatively large eye 11 of the forward end of the connector rod 6. There is an additional connection 2O between this eye 11 and the horizontal portion 17. Moreover the extremity of this portion 17 is directed at right angles as at 21 and is connected with the correspondingly directed portion 22 of an -shaped member 28. The short arm 24 of this member is provided with a seat for reception for a portion of a blade carrying shank 25 of the ciiltivator shovels or blade 26. In addition there is a clamping member 27 on the opposite side, this being connected with the part 24 by the bolts 28.

In connection with the angularly directed portions 21 yand 22, I would state that these are constructed to permit the suspension means and harrow to be adjusted over toward one side of the shank 25. Moreover, the L-shaped member 23 of the bitching clamp can be reversed, that is, placed on the side of the shank where the part 27 is now shown.

It is believed that by carefully considering the description in connection with the drawings, persons f-amiliar with structures of this class will be able to obtain a clear understanding of the invention, therefore a more lengthy description is thought unnecessary.

While the preferred embodiment of the invention has been shown and described, it is to be understood that minor changes comu ing withinthe field of the invention claimed, may be resorted to if desired.

Having thus described my invention, what I claim as new is 1. In a structure of the class described, a harrow embodying a plurality of teeth and a carrying frame therefor, said frame being made up of adjustably connected sections, each section being flat at one end and having its opposite end curved longitudinally, the curved ends of the sections cooperating` with each other and the fiat ends cooperating with each other, and a cylindrical connecting rod connected with the curved end of said sections, said rod being provided at its front end with an attaching eye and being provided with a multiplicity of holes at its opposite end for adjustable connection with the adjacent part of the frame.

2. In a structure of the class described, a barrow embodying a toothed frame, of substantially rectangular form, said frame boing made up of a plurality of adjustably connected sections, a pair of intersecting' connectors connected with the corner portions of the frame, one connector embodying a pair of flat strips having their inner ends 'wisted to dispose them in vertical position, said vertically disposed portions being formed with apertures, a connecting bolt passing through the apertures, the other connector being in the form of a longitudinal cylindrical rod having an attaching eye at its front and having its opposite end provided with a plurality of bolt holes, the rod being bowed at its center to arch over the central portion of the first named connector.

8. In la structure of the class described, a suspension member, a barrow beneath said member, hangers between said member and harrow, and a hitching clamp for said member, said clamp embodying a substantially L-shaped member and attaching portions, the aforesaid member being provided at its forward end with a laterally directed portion adjustably connected with a portion of said L-shaped member.

In testimony whereof I aiiix my signature.

DAVID SPAHN. 

